Not sure if this is the correct place for website issues, but here I go.
When I try to log in through chrome on my Nexus 4 phone both input boxes don't update to show the username and password while typing. There is also lot of lag between switch between the username and password box, as well as pressing the submit button. After which the input boxes will update.
The log in process does work. It's just a bit hidden and sluggish.